[congress] Transition Ocata to End of Life

This transition the Ocata branch to End of Life. The last patch of the
branch will be tagged with ocata-eol tag. The ocata branch cannot be
used anymore and will be deleted if this patch merges.

This is needed as stable/ocata is not actively maintained in the recent
period and thus gate is broken due to job failures. By removing these
branches, infra resources will be freed up, too.

Please try to identify any zuul job, that is defined outside of the
repositories in this patch (for example in openstack-zuul-jobs, etc.)
and won't be used anymore if stable/ocata is deleted, and propose a job
removal patch for them.

Please +1 if the team is ready for us to proceed with this transition,
or -1 if there are still some activity on the branch and the team wants
to continue to maintain it.

Change-Id: I366b1714fb0d67f20e3ae1a5c52e3bd2e9779787

deliverables/ocata/congress.yaml

@@ -41,5 +41,9 @@ releases:
       - hash: 919b78248643d7c84e7f0056831adfc9810ca396
         repo: openstack/congress
     version: ocata-em
+  - version: ocata-eol
+    projects:
+      - repo: openstack/congress
+        hash: 31866d37f64bb47b24f7f49a7f220cc433865b92
 repository-settings:
   openstack/congress: {}

deliverables/ocata/python-congressclient.yaml

@@ -16,5 +16,9 @@ releases:
       - hash: ab2eea35d535b4cb136f3c410d4b1f6280100ebb
         repo: openstack/python-congressclient
     version: ocata-em
+  - version: ocata-eol
+    projects:
+      - repo: openstack/python-congressclient
+        hash: 24f1595a6b9c945f0d152adb2c437b592c5ec10d
 repository-settings:
   openstack/python-congressclient: {}